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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Camptothecin, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Camptothecin impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Camptothecin-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Camptothecin Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
7-Ethyl-10-Hydroxycamptothecin-d5 (SN 38-d5) Stable Isotopes CS-O-03147 718612-51-2 In Stock
7-Ethyl-d3-Camptothecin Stable Isotopes CS-T-77290 1217626-02-2 In Stock
SN-38-d5 Stable Isotopes CS-T-97170 86639-52-3 (Unlabeled) Enquire
(R)-(-)-Camptothecin-d5 Stable Isotopes CS-T-68999 1329793-44-3 Enquire
(S)-(+)-Camptothecin-d5 Stable Isotopes CS-T-68957 1329616-37-6 Enquire
10-Hydroxy Camptothecin-d5 Stable Isotopes CS-T-78374 1330277-66-1 Enquire
7-Ethyl-10-(4-[[benzylcarbamoyl]amino]-1-piperidino)carbonyl... Stable Isotopes CS-T-77940 1329610-90-3 Enquire
7-Ethyl-10-(4-amino-1-piperidino)carbonyloxycamptothecin-d3 Stable Isotopes CS-T-76120 1217625-98-3 Enquire
7-Ethyl-10-(4-N-aminopentanoic acid)-1-piperidino)carbonylox... Stable Isotopes CS-T-76562 1217816-76-6 Enquire
7-Ethyl-10-hydroxy camptothecin D4 Stable Isotopes CS-Y-00095 1309283-21-3 Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Camptothecin Sodium Salt API CS-EO-03392 72517-83-0 Enquire
Topotecan Related Compound C API CS-O-07471 7689-03-4 In Stock


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
7-Ethyl-10-(4-N-aminopentanoic acid)-1-piperidino)carbonylox... Metabolite CS-T-22479 181467-56-1 In Stock
SN-38 Hydroxy Acid Metabolite CS-T-96136 142677-15-4 Enquire
9-Hydroxy-10-MethoxyCamptothecin Metabolite CS-O-46045 2569708-76-3 Enquire
Hydroxycamptothecin Metabolite CS-BB-00020 130194-92-2 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(R)-(-)-Camptothecine Impurity CS-T-70164 110351-92-3 Enquire
10-Hydroxy Camptothecin Impurity CS-O-06296 19685-09-7 In Stock
Camptothecin Impurity 32 Impurity CS-O-59974 870527-52-9 Enquire
Camptothecin Impurity 8 Impurity CS-P-09067 110351-93-4 Enquire
keto protection of Camptothecin impurity Impurity CS-O-44412 102978-41-6 Enquire
(±)-10-Hydroxycamptothecin Impurity CS-O-31182 64439-81-2 Enquire
(R)-7-Ethyl Camptothecin Impurity CS-T-74864 1217633-65-2 Enquire
(R)-SN-38 Impurity CS-T-61329 647852-82-2 Enquire
10-Hydroxy-9-[(dimethylamino)methyl]-5-ethoxy-(20S,5RS)-camp... Impurity CS-T-78439 504413-76-7 Enquire
11-Ethyl Camptothecin Impurity CS-T-76072 185807-29-8 Enquire
2-Hydroxy Irinotecan Impurity CS-T-78252 1346597-39-4 Enquire
7,11-Diethyl-10-hydroxycamptothecin Impurity CS-T-89394 947687-01-6 Enquire
7-Ethyl-10-methoxycamptothecin Impurity CS-O-37846 86639-53-4 Enquire
7-Methyl Camptothecin Impurity CS-T-82538 78287-26-0 Enquire
9-Amino Camptothecin Impurity CS-T-66132 91421-43-1 Enquire
9-Propoxymethyl-10-hydroxy Camptothecin Impurity CS-T-85313 1379512-11-4 Enquire
Camptothecin 7-Ethyl Impurity Impurity CS-O-07469 78287-27-1 Enquire
Camptothecin Impurity D Impurity CS-EO-00912 Not Available Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
7-Ethyl-10-Hydroxycamptothecin Intermediate CS-O-30862 86639-52-3 In Stock


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(4S)-4-Ethyl-7,8-dihydro-4-hydroxy-1H-pyrano[3,4-f]indolizin... Fine Chemicals CS-T-22749 110351-94-5 In Stock
Exatecan Fine Chemicals CS-ZE-34101 171335-80-1 Enquire
1-(2-Amino-5-hydroxyphenyl)propan-1-one Fine Chemicals CS-T-65649 35364-15-9 Enquire
10,11-Methylenedioxy-20S-camptothecin Fine Chemicals CS-ED-01463 104155-89-7 Enquire
MAG-Camptothecin Fine Chemicals CS-O-37573 246527-99-1 Enquire